CrabCity v5.x Authentication Mod

A mod that supports cross-server authorization by using CrabCity API.

21 Downloads

fabriclibrary

Rent Server with this Mod

About this Mod

Introduction

Based on CrabCity API, this mod can bring a cross-platform user authorization to help you manage your server more easily.

How to use

Install this on your server
Get your server's token from HeyCrab3
Create a file named "cc_blacklist_auth_server_token.txt" on the root directory of the server
Put your token in the file, and make sure that there's only 1 row in the file
Done

Available Versions

CrabCity v5.x Authentication Mod 1.0release

MC 1.19.2fabric

February 9, 2026

How to Install CrabCity v5.x Authentication Mod on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.19.2).

Install Mod

Open the mod browser in the dashboard and search for "CrabCity v5.x Authentication Mod". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.19.2

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

CrabCity v5.x Authentication Mod server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.19.2). You can switch loaders with one click in the panel.

Is CrabCity v5.x Authentication Mod compatible with fabric?

CrabCity v5.x Authentication Mod officially supports fabric for Minecraft 1.19.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with CrabCity v5.x Authentication Mod – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if CrabCity v5.x Authentication Mod consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.